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A127755 as a simple table

na(n)
01
10
21
30
4-1
52
60
71
8-2
96
100
110
120
13-6
1424
150
16-1
172
180
19-24
20120
210
220
230
240
250
26-120
27720
280
291
30-2
316
320
330
34-720
355040
360
370
380
390
400
410
420
43-5040
4440320
450
460
470
48-6
4924
500
510
520
53-40320
54362880
550
560
570
580
590
600
610
620
630

[1,0,1,0,-1,2,0,1,-2,6,0,0,0,-6,24,0,-1,2,0,-24,
 120,0,0,0,0,0,-120,720,0,1,-2,6,0,0,-720,5040,0,0,
 0,0,0,0,0,-5040,40320,0,0,0,-6,24,0,0,0,-40320,
 362880,0,0,0,0,0,0,0,0,0]